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Ubuntu Security Notice USN-4594-1

Ubuntu Security Notice USN-4594-1
Posted Oct 21, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4594-1 - It was discovered that Quassel incorrectly handled Qdatastream protocol. A remote attacker could possibly use this issue to execute arbitrary code. It was discovered that Quassel incorrectly handled certain login requests. A remote attacker could possibly use this issue to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, protocol
systems | linux, ubuntu
advisories | CVE-2018-1000178, CVE-2018-1000179
SHA-256 | 455fd8d476412d476d20a8af81d6f7521e1ec0f7a8917720040db77c55e04834

Ubuntu Security Notice USN-4594-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4594-1
October 20, 2020

quassel vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Quassel could be made to crash or run programs if it received
specially crafted network traffic.

Software Description:
- quassel: distributed IRC client - monolithic core+client

Details:

It was discovered that Quassel incorrectly handled Qdatastream protocol. A
remote attacker could possibly use this issue to execute arbitrary code.
(CVE-2018-1000178)

It was discovered that Quassel incorrectly handled certain login requests.
A remote attacker could possibly use this issue to cause a denial of
service. (CVE-2018-1000179)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
quassel 1:0.12.4-3ubuntu1.18.04.3
quassel-core 1:0.12.4-3ubuntu1.18.04.3

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4594-1
CVE-2018-1000178, CVE-2018-1000179

Package Information:
https://launchpad.net/ubuntu/+source/quassel/1:0.12.4-3ubuntu1.18.04.3
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